lkml.org 
[lkml]   [2009]   [Apr]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [FIXED] EEE PC hangs when booting off battery
    Alan Jenkins wrote:
    > Bjorn Helgaas wrote:
    >
    >> On Tuesday 14 April 2009 09:17:28 am Arjan van de Ven wrote:
    >>
    >>
    >>> On Tue, 14 Apr 2009 08:59:01 -0600
    >>> Bjorn Helgaas <bjorn.helgaas@hp.com> wrote:
    >>>
    >>>
    >>>
    >>>> I can't help with the real problem of why the asynchronous battery
    >>>> init causes the hang.
    >>>>
    >>>>
    >>> that got fixed already for the module case.
    >>>
    >>>
    >> But apparently still broken for the builtin case? I think Alan is
    >> running pretty new bits -- he said "latest git" on April 11.
    >>
    >>
    >
    > It's now fixed, in 2.6.30-rc2. My battery is modular btw. I suspect
    >
    > 5d38258ec026921a7b266f4047ebeaa75db358e5 "ACPI battery: fix async boot
    > oops" [removal of __init]
    >
    > was not sufficient to fix my problem, but it was solved by the "real" fix,
    >
    > d6de2c80e9d758d2e36c21699117db6178c0f517 "async: Fix module loading
    > async-work regression" [module loading waits on async work]
    >
    >
    > I would argue there's still a question over why the asynchronous battery
    > init (_with_ the oops fix) should cause a hang in the idle routine. But
    > since the regression is fixed, it's not exactly an urgent question.
    >

    Ugh. Recently I tried building the battery driver into the kernel, to
    benefit from the async work. Later, I tried booting from the battery
    and it hung again.

    This time, the kernel did not even respond to SysRq. I tried
    nmi_watchdog=1 and waiting 2 minutes, but the watchdog didn't trigger
    either. As before, it doesn't happen with acpi=off.

    I checked that this still happened in todays rc3, and it doesn't happen
    if I revert

    0f66af530116e9f4dd97f328d91718b56a6fc5a4 "ACPI: battery: asynchronous init"

    Regards
    Alan


    \
     
     \ /
      Last update: 2009-04-22 14:21    [W:3.096 / U:0.324 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site